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Algal bloom commonly refers to the rapid growth of microscopic unicellular algae, not macroscopic algae. An example of a macroscopic algal bloom is a kelp forest . Algal blooms are the result of a nutrient, like nitrogen or phosphorus from various sources (for example fertilizer runoff or other forms of nutrient pollution ), entering the ...
These blooms are recognizable by large blades of algae that may wash up onto the shoreline. [14] Once the nutrient is present in the water, the algae begin to grow at a much faster rate than usual. In a mini bloom, this fast growth benefits the whole ecosystem by providing food and nutrients for other organisms. [10]
The brown algae include the largest and fastest growing of seaweeds. [6] Fronds of Macrocystis may grow as much as 50 cm (20 in) per day, and the stipes can grow 6 cm (2.4 in) in a single day. [13] Growth in most brown algae occurs at the tips of structures as a result of divisions in a single apical cell or in a row of such
Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means.
Dulse is one of many edible algae. Algaculture may become an important part of a healthy and sustainable food system [11]. Several species of algae are raised for food. While algae have qualities of a sustainable food source, "producing highly digestible proteins, lipids, and carbohydrates, and are rich in essential fatty acids, vitamins, and minerals" and e.g. having a high protein ...
The organisms require nutrient-rich water with temperatures between 6 and 14 °C (43 and 57 °F). They are known for their high growth rate—the genera Macrocystis and Nereocystis can grow as fast as half a metre a day (that is, about 20 inches a day), ultimately reaching 30 to 80 metres (100 to 260 ft). [7]
At its peak, this reaction occurs with a rate constant on the order of 2.2×10 4 – 4.5×10 5 L mol −1 sec −1 in seawater. [12] The dismutation of superoxide to hydrogen peroxide can also be catalyzed by the antioxidant enzyme superoxide dismutase with a rate constant on the order of 2×10 9 L mol −1 sec −1. [32]
Maerl (also rhodolith) is a collective name for non-geniculate coralline red algae with a certain growth habit. [1] Maerl grows at a rate of c. 1 mm per year. [2] It accumulates as unattached particles and forms extensive beds in suitable sublittoral sites. [3] The term maerl originally refers to the branched growth form of Lemoine (1910) [4 ...